Search results
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A noise removal algorithm for acoustic data with strong interference based on post-processing techniques
Abstract: The use of fishing-vessel-based acoustic data has been recognized by SC-CAMLR as an ... important way to estimate the distribution and relative abundance of Antarctic krill (Euphausia superba ... ), yet the quality and even the utility of the data may be seriously degraded by interferences due to the ... lack of synchronization device for the acoustic instruments equipped on some of the vessels. A simple ...
Meeting Document : SG-ASAM-15/02 : Author(s): X. Wang, X. Zhao and J. Zhang (People’s Republic of China)
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Winter habitat selection by Antarctic krill will increase krill-predator-fishery interactions during ice free years
of a commercial fishery (Nicol et al. 2010; Watters et al. 2013), recent declines in seasonal sea-ice ... estimates of krill biomass, habitat use, and association with top predators to examine these likely ... interactions. Krill were virtually absent in offshore waters of the Drake Passage during all three winters ... , compared to summer. In Bransfield Strait, median krill abundance was an order of magnitude higher (8 krill ...
Meeting Document : WG-EMM-15/05 : Author(s): C.S. Reiss, A. Cossio, C.D. Jones, A. Murray, G. Mitchell, J. Santora, K. Dietrich, E. Weiss, C. Gimpel, J. Walsh and G.M. Watters (USA)
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Monitoring vessel traffic in the Ross Sea Region MPA
Abstract: Paragraph 24 of Conservation Measure (CM) 91-05 addresses the monitoring of vessel ... Secretariat prior to the entry of their fishing vessels into the MPA. Vessels conducting scientific research ... Secretariat of their plans for intended passage through the MPA. With entry into force of the MPA occurring ... effective and efficient monitoring of vessel traffic in the MPA, as per CM 91-05, paragraph 24. Author(s ...
Meeting Document : CCAMLR-XXXVI/23 : Author(s): Delegation of the USA
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How much do icefish (Notothenioidei, Channichthyidae) eat in the southern Scotia Arc and the Antarctic Peninsula region?
, Cryodraco antarcticus, and Chaenodraco wilsoni) ice fish species were estimated around islands of the ... of the Antarctic Peninsula. Variability of food consumption was comparatively low between years in ... primary dietary component. Their food intake varied by a factor of 2 or 3 between years. Most estimates of ... daily food intake of demersal Antarctic fish both available in the scientific literature and from our ...
Meeting Document : WG-FSA-10/18 : Author(s): K.-H. Kock (Germany), C.D. Jones (USA), J. Gröger and S. Schöling (Germany)
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2006–2013 fish distribution and biomass in the Kerguelen EEZ (CCAMLR DIVISION 58-5-1) for the bathymetric range 100–1 000 m
Abstract: Three fish biomass surveys have been recently undertaken in the northern part of the ... neritic and 6 deep-sea for their upper bathymetric range). The high number of stations (up to 200 each ... time) allows to be confident with the estimation of fish biomass ranging from 247 000 to 268 000 tons ... for a ground area of about 183 000 km 2. Patagonian toothfish (Dissostichus eleginoides), with up to ...
Meeting Document : WG-FSA-14/07 : Author(s): G. Duhamel, M. Hautecœur and R. Sinegre (France)
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MPA planning domains
provides a mechanism by which to plan and report on the development of MPAs and as a means to organise ... location of current and planned research efforts in order to be helpful as reporting and auditing units ... . The boundaries of the planning domains are not boundaries of proposed MPAs and are not intended to ... – Bellingshausen A map of the CAMLR Convention Area, onto which a layer of MPA planning domains can be applied, can ...
Page : Site Section: Science
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The US commercial krill fishery in Area 48: development, fishing patterns, and decision making
decision making processes involved in harvesting krill by the U.S. fishery. Because the Captain of the Top ... north of South Georgia; in 2001, all fishing was conducted off the South Shetland Islands and Bransfield ... Strait. In 2002, fishing operations were carried out off the Antarctic Peninsula, west of Elephant Island ... ; and northwest of the South Orkney Islands. Information on set locations, effort, yield, catch rates ...
Meeting Document : WG-EMM-02/18 : Author(s): C.D. Jones and M. Hull (USA)
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FIELD IDENTIFICATION GUIDE TO HEARD ISLAND AND MCDONALD ISLAND (HIMI) BENTHIC INVERTEBRATES
Abstract: At CCAMLR-XXVI the Working Group on Fish Stock Assessment (WG-FSA) noted a lack of ... specific reference material for the identification of benthic invertebrates in areas specific to which ... observers carry out their activities (SC-CAMLR-XXVI: Annex 5, paragraph 6.32). To improve the standard of ... observer identifications and also to assist in the identification of vulnerable areas, the Scientific ...
Meeting Document : WG-FSA-08/59 : Author(s): T. Hibberd and K. Moore (Australia)
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Report on the CCAMLR Marine Debris monitoring program
common type of debris items found in beach surveys. The fishing items found were mostly from longline and ... bands found at Bird Island. The amount of debris in albatross colonies at Bird Island varies; debris ... . The amount of fishing related items (fishing lines and hooks) found in wandering albatross colonies ... remains the most frequent debris item found in each season. The number of marine mammal entanglements has ...
Meeting Document : WG-FSA-15/15 : Author(s): CCAMLR Secretariat
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Large-scale oceanographic fluctuations drive Antarctic petrel survival and reproduction
predators forage over large areas, these indirect e ects may be associated with large-scale patterns of ... predict variation in the demographic parameters of Antarctic seabirds. First, we used a long-term dataset ... on adult survival (estimated from capture–mark–recapture data) and reproduction of Antarctic petrel ... exhaustive literature review to determine whether the e ects of large-scale environmental variability on ...
Meeting Document : WG-EMM-16/P14 : Author(s): S. Descamps, A. Tarroux, S.-H. Lorentsen, O.P. Love, Ø. Varpe and N.G. Yoccoz